Chalcocite from selected localities.
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1986) 81:1899-1931; Hayes, T. S., Landis, G. P., Whelan, J. F., Rye, R. O., & Moscati, R. J. (2012). The Spar Lake strata-bound Cu-Ag deposit formed across a mixing zone between trapped natural gas and metals-bearing brine. Economic Geology, 107(6), 1223-1249. |
Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240. |